968397 divided by 91 
The aim is to understand the frequency of 91 in 968397.

Going ahead to step 1:
If we divide 9 by 91, we get 0 and a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Take the next digit (6) from the dividend and append it to 9, then repeat: 96 / 91

Let's proceed to step 2:
91 goes into 96 1 times with a remainder of 5.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 91 from 96 and we're left with 5.
Fetch the next digit (8) from the dividend, attach it to 5 and continue: 58 / 91

Let's proceed to step 3:
91 goes into 58 0 times with a remainder of 58.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtract 0 from 58 to get 58.
Include the next digit (3) from the dividend after 58, then repeat: 583 / 91

Going ahead to step 4:
583 divided by 91 is 6 with a remainder of 37.
The number 6 becomes the next digit in our result. 
Result so far: 106.0
If we take 546 away from 583, we end up with 37.
Fetch the next digit (9) from the dividend, attach it to 37 and continue: 379 / 91

On to step 5:
If we divide 379 by 91, we get 4 and a remainder of 15.
Record the quotient 4 as the next digit in the result. 
Result so far: 1064.0
If we subtract 364 from 379, we get 15.
Fetch the next digit (7) from the dividend, attach it to 15 and continue: 157 / 91

On to step 6:
The number 91 fits into 157 1 times, leaving a remainder of 66.
Put 1 as the next digit of the answer. 
Result so far: 10641.0
Subtracting 91 from 157 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 7:
660 divided by 91 is 7 with a remainder of 23.
The next digit of our result is 7. 
Result so far: 10641.7
The remainder is 23 after subtracting 637 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 8:
When dividing 230 by 91, we get 2 with a remainder of 48.
The number 2 becomes the next digit in our result. 
Result so far: 10641.72
If we take 182 away from 230, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 9:
The number 91 fits into 480 5 times, leaving a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 10641.725
If we subtract 455 from 480, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 10:
91 can be fit into 250 2 times, resulting in a remainder of 68.
The number 2 becomes the next digit in our result. 
Result so far: 10641.7252
The remainder is 68 after subtracting 182 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 11:
If we divide 680 by 91, we get 7 and a remainder of 43.
The next digit of our result is 7. 
Result so far: 10641.72527
If we subtract 637 from 680, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Moving on to step 12:
The number 91 fits into 430 4 times, leaving a remainder of 66.
Put 4 as the next digit of the answer. 
Result so far: 10641.725274
If we take 364 away from 430, we end up with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 13:
660 divided by 91 is 7 with a remainder of 23.
Put 7 as the next digit of the answer. 
Result so far: 10641.7252747
Subtracting 637 from 660 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 14:
The number 91 fits into 230 2 times, leaving a remainder of 48.
The next digit of our result is 2. 
Result so far: 10641.72527472
Deduct 182 from 230 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The final outcome is 10641.72527472, with a leftover of 4.8e-08.